1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms
4 * Cherrytrail and Braswell, with RT5645 codec.
5 *
6 * Copyright (C) 2015 Intel Corp
7 * Author: Fang, Yang A <yang.a.fang@intel.com>
8 * N,Harshapriya <harshapriya.n@intel.com>
9 * This file is modified from cht_bsw_rt5672.c
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 *
12 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
13 */
14
15 #include <linux/module.h>
16 #include <linux/platform_device.h>
17 #include <linux/acpi.h>
18 #include <linux/clk.h>
19 #include <linux/dmi.h>
20 #include <linux/slab.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/jack.h>
25 #include <sound/soc-acpi.h>
26 #include "../../codecs/rt5645.h"
27 #include "../atom/sst-atom-controls.h"
28 #include "../common/soc-intel-quirks.h"
29
30 #define CHT_PLAT_CLK_3_HZ 19200000
31 #define CHT_CODEC_DAI1 "rt5645-aif1"
32 #define CHT_CODEC_DAI2 "rt5645-aif2"
33
34 struct cht_acpi_card {
35 char *codec_id;
36 int codec_type;
37 struct snd_soc_card *soc_card;
38 };
39
40 struct cht_mc_private {
41 struct snd_soc_jack jack;
42 struct cht_acpi_card *acpi_card;
43 char codec_name[SND_ACPI_I2C_ID_LEN];
44 struct clk *mclk;
45 };
46
47 #define CHT_RT5645_MAP(quirk) ((quirk) & GENMASK(7, 0))
48 #define CHT_RT5645_SSP2_AIF2 BIT(16) /* default is using AIF1 */
49 #define CHT_RT5645_SSP0_AIF1 BIT(17)
50 #define CHT_RT5645_SSP0_AIF2 BIT(18)
51 #define CHT_RT5645_PMC_PLT_CLK_0 BIT(19)
52
53 static unsigned long cht_rt5645_quirk = 0;
54
log_quirks(struct device * dev)55 static void log_quirks(struct device *dev)
56 {
57 if (cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2)
58 dev_info(dev, "quirk SSP2_AIF2 enabled");
59 if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1)
60 dev_info(dev, "quirk SSP0_AIF1 enabled");
61 if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)
62 dev_info(dev, "quirk SSP0_AIF2 enabled");
63 if (cht_rt5645_quirk & CHT_RT5645_PMC_PLT_CLK_0)
64 dev_info(dev, "quirk PMC_PLT_CLK_0 enabled");
65 }
66
platform_clock_control(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)67 static int platform_clock_control(struct snd_soc_dapm_widget *w,
68 struct snd_kcontrol *k, int event)
69 {
70 struct snd_soc_dapm_context *dapm = w->dapm;
71 struct snd_soc_card *card = dapm->card;
72 struct snd_soc_dai *codec_dai;
73 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
74 int ret;
75
76 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI1);
77 if (!codec_dai)
78 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI2);
79
80 if (!codec_dai) {
81 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
82 return -EIO;
83 }
84
85 if (SND_SOC_DAPM_EVENT_ON(event)) {
86 ret = clk_prepare_enable(ctx->mclk);
87 if (ret < 0) {
88 dev_err(card->dev,
89 "could not configure MCLK state");
90 return ret;
91 }
92 } else {
93 /* Set codec sysclk source to its internal clock because codec PLL will
94 * be off when idle and MCLK will also be off when codec is
95 * runtime suspended. Codec needs clock for jack detection and button
96 * press. MCLK is turned off with clock framework or ACPI.
97 */
98 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK,
99 48000 * 512, SND_SOC_CLOCK_IN);
100 if (ret < 0) {
101 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
102 return ret;
103 }
104
105 clk_disable_unprepare(ctx->mclk);
106 }
107
108 return 0;
109 }
110
111 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
112 SND_SOC_DAPM_HP("Headphone", NULL),
113 SND_SOC_DAPM_MIC("Headset Mic", NULL),
114 SND_SOC_DAPM_MIC("Int Mic", NULL),
115 SND_SOC_DAPM_MIC("Int Analog Mic", NULL),
116 SND_SOC_DAPM_SPK("Ext Spk", NULL),
117 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
118 platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
119 };
120
121 static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = {
122 {"IN1P", NULL, "Headset Mic"},
123 {"IN1N", NULL, "Headset Mic"},
124 {"DMIC L1", NULL, "Int Mic"},
125 {"DMIC R1", NULL, "Int Mic"},
126 {"IN2P", NULL, "Int Analog Mic"},
127 {"IN2N", NULL, "Int Analog Mic"},
128 {"Headphone", NULL, "HPOL"},
129 {"Headphone", NULL, "HPOR"},
130 {"Ext Spk", NULL, "SPOL"},
131 {"Ext Spk", NULL, "SPOR"},
132 {"Headphone", NULL, "Platform Clock"},
133 {"Headset Mic", NULL, "Platform Clock"},
134 {"Int Mic", NULL, "Platform Clock"},
135 {"Int Analog Mic", NULL, "Platform Clock"},
136 {"Int Analog Mic", NULL, "micbias1"},
137 {"Int Analog Mic", NULL, "micbias2"},
138 {"Ext Spk", NULL, "Platform Clock"},
139 };
140
141 static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = {
142 {"IN1P", NULL, "Headset Mic"},
143 {"IN1N", NULL, "Headset Mic"},
144 {"DMIC L2", NULL, "Int Mic"},
145 {"DMIC R2", NULL, "Int Mic"},
146 {"Headphone", NULL, "HPOL"},
147 {"Headphone", NULL, "HPOR"},
148 {"Ext Spk", NULL, "SPOL"},
149 {"Ext Spk", NULL, "SPOR"},
150 {"Headphone", NULL, "Platform Clock"},
151 {"Headset Mic", NULL, "Platform Clock"},
152 {"Int Mic", NULL, "Platform Clock"},
153 {"Ext Spk", NULL, "Platform Clock"},
154 };
155
156 static const struct snd_soc_dapm_route cht_rt5645_ssp2_aif1_map[] = {
157 {"AIF1 Playback", NULL, "ssp2 Tx"},
158 {"ssp2 Tx", NULL, "codec_out0"},
159 {"ssp2 Tx", NULL, "codec_out1"},
160 {"codec_in0", NULL, "ssp2 Rx" },
161 {"codec_in1", NULL, "ssp2 Rx" },
162 {"ssp2 Rx", NULL, "AIF1 Capture"},
163 };
164
165 static const struct snd_soc_dapm_route cht_rt5645_ssp2_aif2_map[] = {
166 {"AIF2 Playback", NULL, "ssp2 Tx"},
167 {"ssp2 Tx", NULL, "codec_out0"},
168 {"ssp2 Tx", NULL, "codec_out1"},
169 {"codec_in0", NULL, "ssp2 Rx" },
170 {"codec_in1", NULL, "ssp2 Rx" },
171 {"ssp2 Rx", NULL, "AIF2 Capture"},
172 };
173
174 static const struct snd_soc_dapm_route cht_rt5645_ssp0_aif1_map[] = {
175 {"AIF1 Playback", NULL, "ssp0 Tx"},
176 {"ssp0 Tx", NULL, "modem_out"},
177 {"modem_in", NULL, "ssp0 Rx" },
178 {"ssp0 Rx", NULL, "AIF1 Capture"},
179 };
180
181 static const struct snd_soc_dapm_route cht_rt5645_ssp0_aif2_map[] = {
182 {"AIF2 Playback", NULL, "ssp0 Tx"},
183 {"ssp0 Tx", NULL, "modem_out"},
184 {"modem_in", NULL, "ssp0 Rx" },
185 {"ssp0 Rx", NULL, "AIF2 Capture"},
186 };
187
188 static const struct snd_kcontrol_new cht_mc_controls[] = {
189 SOC_DAPM_PIN_SWITCH("Headphone"),
190 SOC_DAPM_PIN_SWITCH("Headset Mic"),
191 SOC_DAPM_PIN_SWITCH("Int Mic"),
192 SOC_DAPM_PIN_SWITCH("Int Analog Mic"),
193 SOC_DAPM_PIN_SWITCH("Ext Spk"),
194 };
195
196 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = {
197 {
198 .pin = "Headphone",
199 .mask = SND_JACK_HEADPHONE,
200 },
201 {
202 .pin = "Headset Mic",
203 .mask = SND_JACK_MICROPHONE,
204 },
205 };
206
cht_aif1_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)207 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
208 struct snd_pcm_hw_params *params)
209 {
210 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
211 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
212 int ret;
213
214 /* set codec PLL source to the 19.2MHz platform clock (MCLK) */
215 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
216 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
217 if (ret < 0) {
218 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
219 return ret;
220 }
221
222 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1,
223 params_rate(params) * 512, SND_SOC_CLOCK_IN);
224 if (ret < 0) {
225 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
226 return ret;
227 }
228
229 return 0;
230 }
231
cht_rt5645_quirk_cb(const struct dmi_system_id * id)232 static int cht_rt5645_quirk_cb(const struct dmi_system_id *id)
233 {
234 cht_rt5645_quirk = (unsigned long)id->driver_data;
235 return 1;
236 }
237
238 static const struct dmi_system_id cht_rt5645_quirk_table[] = {
239 {
240 /* Strago family Chromebooks */
241 .callback = cht_rt5645_quirk_cb,
242 .matches = {
243 DMI_MATCH(DMI_PRODUCT_FAMILY, "Intel_Strago"),
244 },
245 .driver_data = (void *)CHT_RT5645_PMC_PLT_CLK_0,
246 },
247 {
248 },
249 };
250
cht_codec_init(struct snd_soc_pcm_runtime * runtime)251 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
252 {
253 struct snd_soc_card *card = runtime->card;
254 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
255 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
256 int jack_type;
257 int ret;
258
259 if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) ||
260 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {
261 /* Select clk_i2s2_asrc as ASRC clock source */
262 rt5645_sel_asrc_clk_src(component,
263 RT5645_DA_STEREO_FILTER |
264 RT5645_DA_MONO_L_FILTER |
265 RT5645_DA_MONO_R_FILTER |
266 RT5645_AD_STEREO_FILTER,
267 RT5645_CLK_SEL_I2S2_ASRC);
268 } else {
269 /* Select clk_i2s1_asrc as ASRC clock source */
270 rt5645_sel_asrc_clk_src(component,
271 RT5645_DA_STEREO_FILTER |
272 RT5645_DA_MONO_L_FILTER |
273 RT5645_DA_MONO_R_FILTER |
274 RT5645_AD_STEREO_FILTER,
275 RT5645_CLK_SEL_I2S1_ASRC);
276 }
277
278 if (cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) {
279 ret = snd_soc_dapm_add_routes(&card->dapm,
280 cht_rt5645_ssp2_aif2_map,
281 ARRAY_SIZE(cht_rt5645_ssp2_aif2_map));
282 } else if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) {
283 ret = snd_soc_dapm_add_routes(&card->dapm,
284 cht_rt5645_ssp0_aif1_map,
285 ARRAY_SIZE(cht_rt5645_ssp0_aif1_map));
286 } else if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2) {
287 ret = snd_soc_dapm_add_routes(&card->dapm,
288 cht_rt5645_ssp0_aif2_map,
289 ARRAY_SIZE(cht_rt5645_ssp0_aif2_map));
290 } else {
291 ret = snd_soc_dapm_add_routes(&card->dapm,
292 cht_rt5645_ssp2_aif1_map,
293 ARRAY_SIZE(cht_rt5645_ssp2_aif1_map));
294 }
295 if (ret)
296 return ret;
297
298 if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650)
299 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
300 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
301 SND_JACK_BTN_2 | SND_JACK_BTN_3;
302 else
303 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
304
305 ret = snd_soc_card_jack_new_pins(runtime->card, "Headset", jack_type,
306 &ctx->jack, cht_bsw_jack_pins,
307 ARRAY_SIZE(cht_bsw_jack_pins));
308 if (ret) {
309 dev_err(runtime->dev, "Headset jack creation failed %d\n", ret);
310 return ret;
311 }
312
313 rt5645_set_jack_detect(component, &ctx->jack, &ctx->jack, &ctx->jack);
314
315
316 /*
317 * The firmware might enable the clock at
318 * boot (this information may or may not
319 * be reflected in the enable clock register).
320 * To change the rate we must disable the clock
321 * first to cover these cases. Due to common
322 * clock framework restrictions that do not allow
323 * to disable a clock that has not been enabled,
324 * we need to enable the clock first.
325 */
326 ret = clk_prepare_enable(ctx->mclk);
327 if (!ret)
328 clk_disable_unprepare(ctx->mclk);
329
330 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
331
332 if (ret)
333 dev_err(runtime->dev, "unable to set MCLK rate\n");
334
335 return ret;
336 }
337
cht_codec_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)338 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
339 struct snd_pcm_hw_params *params)
340 {
341 int ret;
342 struct snd_interval *rate = hw_param_interval(params,
343 SNDRV_PCM_HW_PARAM_RATE);
344 struct snd_interval *channels = hw_param_interval(params,
345 SNDRV_PCM_HW_PARAM_CHANNELS);
346
347 /* The DSP will convert the FE rate to 48k, stereo, 24bits */
348 rate->min = rate->max = 48000;
349 channels->min = channels->max = 2;
350
351 if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) ||
352 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {
353
354 /* set SSP0 to 16-bit */
355 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
356
357 /*
358 * Default mode for SSP configuration is TDM 4 slot, override config
359 * with explicit setting to I2S 2ch 16-bit. The word length is set with
360 * dai_set_tdm_slot() since there is no other API exposed
361 */
362 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
363 SND_SOC_DAIFMT_I2S |
364 SND_SOC_DAIFMT_NB_NF |
365 SND_SOC_DAIFMT_BP_FP
366 );
367 if (ret < 0) {
368 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
369 return ret;
370 }
371
372 ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
373 SND_SOC_DAIFMT_I2S |
374 SND_SOC_DAIFMT_NB_NF |
375 SND_SOC_DAIFMT_BC_FC
376 );
377 if (ret < 0) {
378 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
379 return ret;
380 }
381
382 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 16);
383 if (ret < 0) {
384 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
385 return ret;
386 }
387
388 } else {
389
390 /* set SSP2 to 24-bit */
391 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
392
393 /*
394 * Default mode for SSP configuration is TDM 4 slot
395 */
396 ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
397 SND_SOC_DAIFMT_DSP_B |
398 SND_SOC_DAIFMT_IB_NF |
399 SND_SOC_DAIFMT_BC_FC);
400 if (ret < 0) {
401 dev_err(rtd->dev, "can't set format to TDM %d\n", ret);
402 return ret;
403 }
404
405 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
406 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0xF, 0xF, 4, 24);
407 if (ret < 0) {
408 dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
409 return ret;
410 }
411 }
412 return 0;
413 }
414
cht_aif1_startup(struct snd_pcm_substream * substream)415 static int cht_aif1_startup(struct snd_pcm_substream *substream)
416 {
417 return snd_pcm_hw_constraint_single(substream->runtime,
418 SNDRV_PCM_HW_PARAM_RATE, 48000);
419 }
420
421 static const struct snd_soc_ops cht_aif1_ops = {
422 .startup = cht_aif1_startup,
423 };
424
425 static const struct snd_soc_ops cht_be_ssp2_ops = {
426 .hw_params = cht_aif1_hw_params,
427 };
428
429 SND_SOC_DAILINK_DEF(dummy,
430 DAILINK_COMP_ARRAY(COMP_DUMMY()));
431
432 SND_SOC_DAILINK_DEF(media,
433 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
434
435 SND_SOC_DAILINK_DEF(deepbuffer,
436 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
437
438 SND_SOC_DAILINK_DEF(ssp2_port,
439 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
440 SND_SOC_DAILINK_DEF(ssp2_codec,
441 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5645:00", "rt5645-aif1")));
442
443 SND_SOC_DAILINK_DEF(platform,
444 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
445
446 static struct snd_soc_dai_link cht_dailink[] = {
447 [MERR_DPCM_AUDIO] = {
448 .name = "Audio Port",
449 .stream_name = "Audio",
450 .nonatomic = true,
451 .dynamic = 1,
452 .dpcm_playback = 1,
453 .dpcm_capture = 1,
454 .ops = &cht_aif1_ops,
455 SND_SOC_DAILINK_REG(media, dummy, platform),
456 },
457 [MERR_DPCM_DEEP_BUFFER] = {
458 .name = "Deep-Buffer Audio Port",
459 .stream_name = "Deep-Buffer Audio",
460 .nonatomic = true,
461 .dynamic = 1,
462 .dpcm_playback = 1,
463 .ops = &cht_aif1_ops,
464 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
465 },
466 /* CODEC<->CODEC link */
467 /* back ends */
468 {
469 .name = "SSP2-Codec",
470 .id = 0,
471 .no_pcm = 1,
472 .init = cht_codec_init,
473 .be_hw_params_fixup = cht_codec_fixup,
474 .dpcm_playback = 1,
475 .dpcm_capture = 1,
476 .ops = &cht_be_ssp2_ops,
477 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
478 },
479 };
480
481 /* use space before codec name to simplify card ID, and simplify driver name */
482 #define SOF_CARD_RT5645_NAME "bytcht rt5645" /* card name 'sof-bytcht rt5645' */
483 #define SOF_CARD_RT5650_NAME "bytcht rt5650" /* card name 'sof-bytcht rt5650' */
484 #define SOF_DRIVER_NAME "SOF"
485
486 #define CARD_RT5645_NAME "chtrt5645"
487 #define CARD_RT5650_NAME "chtrt5650"
488 #define DRIVER_NAME NULL /* card name will be used for driver name */
489
490 /* SoC card */
491 static struct snd_soc_card snd_soc_card_chtrt5645 = {
492 .owner = THIS_MODULE,
493 .dai_link = cht_dailink,
494 .num_links = ARRAY_SIZE(cht_dailink),
495 .dapm_widgets = cht_dapm_widgets,
496 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
497 .dapm_routes = cht_rt5645_audio_map,
498 .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map),
499 .controls = cht_mc_controls,
500 .num_controls = ARRAY_SIZE(cht_mc_controls),
501 };
502
503 static struct snd_soc_card snd_soc_card_chtrt5650 = {
504 .owner = THIS_MODULE,
505 .dai_link = cht_dailink,
506 .num_links = ARRAY_SIZE(cht_dailink),
507 .dapm_widgets = cht_dapm_widgets,
508 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
509 .dapm_routes = cht_rt5650_audio_map,
510 .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map),
511 .controls = cht_mc_controls,
512 .num_controls = ARRAY_SIZE(cht_mc_controls),
513 };
514
515 static struct cht_acpi_card snd_soc_cards[] = {
516 {"10EC5640", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
517 {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
518 {"10EC5648", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
519 {"10EC3270", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
520 {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650},
521 };
522
523 static char cht_rt5645_codec_name[SND_ACPI_I2C_ID_LEN];
524
525 struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */
526 u64 aif_value; /* 1: AIF1, 2: AIF2 */
527 u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */
528 };
529
snd_cht_mc_probe(struct platform_device * pdev)530 static int snd_cht_mc_probe(struct platform_device *pdev)
531 {
532 struct snd_soc_card *card = snd_soc_cards[0].soc_card;
533 struct snd_soc_acpi_mach *mach;
534 const char *platform_name;
535 struct cht_mc_private *drv;
536 struct acpi_device *adev;
537 bool sof_parent;
538 bool found = false;
539 bool is_bytcr = false;
540 int dai_index = 0;
541 int ret_val = 0;
542 int i;
543 const char *mclk_name;
544
545 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
546 if (!drv)
547 return -ENOMEM;
548
549 mach = pdev->dev.platform_data;
550
551 for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) {
552 if (acpi_dev_found(snd_soc_cards[i].codec_id) &&
553 (!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) {
554 dev_dbg(&pdev->dev,
555 "found codec %s\n", snd_soc_cards[i].codec_id);
556 card = snd_soc_cards[i].soc_card;
557 drv->acpi_card = &snd_soc_cards[i];
558 found = true;
559 break;
560 }
561 }
562
563 if (!found) {
564 dev_err(&pdev->dev, "No matching HID found in supported list\n");
565 return -ENODEV;
566 }
567
568 card->dev = &pdev->dev;
569 sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id);
570
571 /* set correct codec name */
572 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++)
573 if (!strcmp(card->dai_link[i].codecs->name,
574 "i2c-10EC5645:00")) {
575 card->dai_link[i].codecs->name = drv->codec_name;
576 dai_index = i;
577 }
578
579 /* fixup codec name based on HID */
580 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
581 if (adev) {
582 snprintf(cht_rt5645_codec_name, sizeof(cht_rt5645_codec_name),
583 "i2c-%s", acpi_dev_name(adev));
584 cht_dailink[dai_index].codecs->name = cht_rt5645_codec_name;
585 }
586 acpi_dev_put(adev);
587
588 /*
589 * swap SSP0 if bytcr is detected
590 * (will be overridden if DMI quirk is detected)
591 */
592 if (soc_intel_is_byt()) {
593 if (mach->mach_params.acpi_ipc_irq_index == 0)
594 is_bytcr = true;
595 }
596
597 if (is_bytcr) {
598 /*
599 * Baytrail CR platforms may have CHAN package in BIOS, try
600 * to find relevant routing quirk based as done on Windows
601 * platforms. We have to read the information directly from the
602 * BIOS, at this stage the card is not created and the links
603 * with the codec driver/pdata are non-existent
604 */
605
606 struct acpi_chan_package chan_package = { 0 };
607
608 /* format specified: 2 64-bit integers */
609 struct acpi_buffer format = {sizeof("NN"), "NN"};
610 struct acpi_buffer state = {0, NULL};
611 struct snd_soc_acpi_package_context pkg_ctx;
612 bool pkg_found = false;
613
614 state.length = sizeof(chan_package);
615 state.pointer = &chan_package;
616
617 pkg_ctx.name = "CHAN";
618 pkg_ctx.length = 2;
619 pkg_ctx.format = &format;
620 pkg_ctx.state = &state;
621 pkg_ctx.data_valid = false;
622
623 pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
624 &pkg_ctx);
625 if (pkg_found) {
626 if (chan_package.aif_value == 1) {
627 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
628 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF1;
629 } else if (chan_package.aif_value == 2) {
630 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
631 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2;
632 } else {
633 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
634 pkg_found = false;
635 }
636 }
637
638 if (!pkg_found) {
639 /* no BIOS indications, assume SSP0-AIF2 connection */
640 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2;
641 }
642 }
643
644 /* check quirks before creating card */
645 dmi_check_system(cht_rt5645_quirk_table);
646 log_quirks(&pdev->dev);
647
648 if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) ||
649 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2))
650 cht_dailink[dai_index].codecs->dai_name = "rt5645-aif2";
651
652 if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) ||
653 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2))
654 cht_dailink[dai_index].cpus->dai_name = "ssp0-port";
655
656 /* override platform name, if required */
657 platform_name = mach->mach_params.platform;
658
659 ret_val = snd_soc_fixup_dai_links_platform_name(card,
660 platform_name);
661 if (ret_val)
662 return ret_val;
663
664 if (cht_rt5645_quirk & CHT_RT5645_PMC_PLT_CLK_0)
665 mclk_name = "pmc_plt_clk_0";
666 else
667 mclk_name = "pmc_plt_clk_3";
668
669 drv->mclk = devm_clk_get(&pdev->dev, mclk_name);
670 if (IS_ERR(drv->mclk)) {
671 dev_err(&pdev->dev, "Failed to get MCLK from %s: %ld\n",
672 mclk_name, PTR_ERR(drv->mclk));
673 return PTR_ERR(drv->mclk);
674 }
675
676 snd_soc_card_set_drvdata(card, drv);
677
678 sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
679
680 /* set card and driver name */
681 if (sof_parent) {
682 snd_soc_card_chtrt5645.name = SOF_CARD_RT5645_NAME;
683 snd_soc_card_chtrt5645.driver_name = SOF_DRIVER_NAME;
684 snd_soc_card_chtrt5650.name = SOF_CARD_RT5650_NAME;
685 snd_soc_card_chtrt5650.driver_name = SOF_DRIVER_NAME;
686 } else {
687 snd_soc_card_chtrt5645.name = CARD_RT5645_NAME;
688 snd_soc_card_chtrt5645.driver_name = DRIVER_NAME;
689 snd_soc_card_chtrt5650.name = CARD_RT5650_NAME;
690 snd_soc_card_chtrt5650.driver_name = DRIVER_NAME;
691 }
692
693 /* set pm ops */
694 if (sof_parent)
695 pdev->dev.driver->pm = &snd_soc_pm_ops;
696
697 ret_val = devm_snd_soc_register_card(&pdev->dev, card);
698 if (ret_val) {
699 dev_err(&pdev->dev,
700 "snd_soc_register_card failed %d\n", ret_val);
701 return ret_val;
702 }
703 platform_set_drvdata(pdev, card);
704 return ret_val;
705 }
706
707 static struct platform_driver snd_cht_mc_driver = {
708 .driver = {
709 .name = "cht-bsw-rt5645",
710 },
711 .probe = snd_cht_mc_probe,
712 };
713
714 module_platform_driver(snd_cht_mc_driver)
715
716 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
717 MODULE_AUTHOR("Fang, Yang A,N,Harshapriya");
718 MODULE_LICENSE("GPL v2");
719 MODULE_ALIAS("platform:cht-bsw-rt5645");
720